diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index 18c32637047f81d0569f79e8fca736cfee13e169..3ba23d29f50a5fa7557999152863f99b5180bf99 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -483,6 +483,9 @@ enum binder_deferred_state {
  * @files                 files_struct for process
  *                        (protected by @files_lock)
  * @files_lock            mutex to protect @files
+ * @cred                  struct cred associated with the `struct file`
+ *                        in binder_open()
+ *                        (invariant after initialized)
  * @deferred_work_node:   element for binder_deferred_list
  *                        (protected by binder_deferred_lock)
  * @deferred_work:        bitmap of deferred work to perform
@@ -529,6 +532,7 @@ struct binder_proc {
 	struct task_struct *tsk;
 	struct files_struct *files;
 	struct mutex files_lock;
+	const struct cred *cred;
 	struct hlist_node deferred_work_node;
 	int deferred_work;
 	bool is_dead;
@@ -2956,7 +2960,7 @@ static void binder_transaction(struct binder_proc *proc,
 		t->from = thread;
 	else
 		t->from = NULL;
-	t->sender_euid = task_euid(proc->tsk);
+	t->sender_euid = proc->cred->euid;
 	t->to_proc = target_proc;
 	t->to_thread = target_thread;
 	t->code = tr->code;
@@ -4328,6 +4332,7 @@ static void binder_free_proc(struct binder_proc *proc)
 	BUG_ON(!list_empty(&proc->delivered_death));
 	binder_alloc_deferred_release(&proc->alloc);
 	put_task_struct(proc->tsk);
+	put_cred(proc->cred);
 	binder_stats_deleted(BINDER_STAT_PROC);
 	kfree(proc);
 }
@@ -4786,6 +4791,7 @@ static int binder_open(struct inode *nodp, struct file *filp)
 	get_task_struct(current->group_leader);
 	proc->tsk = current->group_leader;
 	mutex_init(&proc->files_lock);
+	proc->cred = get_cred(filp->f_cred);
 	INIT_LIST_HEAD(&proc->todo);
 	proc->default_priority = task_nice(current);
 	binder_dev = container_of(filp->private_data, struct binder_device,